Question
A chord 6.6m long is 5.6m from the centre of the circle.find the radius of the circle.
Answers
Reiny
Make a sketch.
the line from the centre hits the chord at its midpoint and you have a right-angled triangle.
You can use Pythagoras.
r^2 = 3.3^2 + 5.6^2 = 42.25
r = √42.25 = 6.5
the line from the centre hits the chord at its midpoint and you have a right-angled triangle.
You can use Pythagoras.
r^2 = 3.3^2 + 5.6^2 = 42.25
r = √42.25 = 6.5